骨桥蛋白对人膝骨关节炎软骨细胞IL-6和IL-8表达的影响

被引:0
作者
杨阳
机构
[1] 中南大学
关键词
骨关节炎; 软骨细胞; 骨桥蛋白; IL-6; IL-8;
D O I
暂无
年度学位
2012
学位类型
博士
导师
摘要
目的:通过观察OPN对体外培养人膝骨关节炎软骨细胞IL-6mRNA和IL-8mRNA表达的影响,初步探讨OPN在骨关节炎的作用机理。方法:选取接受全膝关节置换手术的原发性膝关节骨关节炎患者的关节截骨软骨标本16份,通过Ⅱ胶原酶一步消化法,获取OA软骨细胞,取第1代软骨细胞,高糖DMEM培养基同步化处理后,不同浓度OPN干预分为三组:A组(空白对照组)、B组(100ng/ml OPN干预组)、C组(1μg/mlOPN干预组)。在37℃5%CO2温箱继续培养48h后,采用Real-time Q PCR检测OA软骨细胞IL-6mRNA和IL-8mRNA表达水平。用SPSS19.0统计软件包分析OPN干预后目标基因mRNA表达水平的差异。 结果: 1.100ng/ml OPN干预组OA软骨细胞IL-6mRNA表达水平(1.83±0.62)较空白对照组(x=1.00)升高,两者之间差异有显著性(p<0.05)。 2、1μg/mlOPN干预组OA软骨细胞IL-6mRNA表达水平(3.10±1.21)较空白对照组(x=1.00)升高,两者之间差异有显著性(p<0.05)。 3、1μg/mlOPN干预组OA软骨细胞IL-6mRNA表达水平(3.10±1.21)较100ng/ml OPN干预组(1.83±0.62)升高,两者之间差异有显著性(p<0.05)。 4、OA软骨细胞IL-6相对表达量与OPN干预浓度呈显著正相关(r=0.59,P<0.01)。 5、100ng/mlOPN干预组OA软骨细胞IL-8mRNA表达水平(1.57±0.53)较空白对照组(x=1.00)升高,两者之间差异有显著性(p<0.05)。 6、1μg/mlOPN干预组OA软骨细胞IL-8mRNA表达水平(3.27±1.75)较空白对照组(x=1.00)升高,两者之间差异有显著性(p<0.05)。 7、1μg/mlOPN干预组OA软骨细胞IL-8mRNA表达水平(3.27±1.75)较100ng/mlOPN干预组(1.57±0.53)升高,两者之间差异有显著性(p<0.05)。 8、OA软骨细胞IL-8相对表达量与OPN干预浓度呈显著正相关(r=0.52,P<0.01)。 结论: 1、OPN可以上调OA软骨细胞IL-6mRNA表达,人OA软骨IL-6表达水平升高与OPN浓度升高呈正相关; 2、OPN可以上调OA软骨细胞IL-8mRNA表达,人OA软骨IL-8表达水平升高与OPN浓度升高呈正相关。
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页数:61
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